Vaporizer



March 16 1926. 1,577,354

l `A. w. MCCALMONT 1 VAPORIZER Filed April ll. 1921 `the invention consists in Patented Mar. i6, i926.

PATENT vALJBJEJRLIFUS W. MCCALMONT, OF PONTIAC, MICHIGAN, ASSIGNOR TO BRISCOE DEVICES CORPORATION, 0F PONTIAC, MICHIGAN, A' CORPORATION 0F MICHIGAN.

YAPORIZER.

Application 'led April 11, 1921. @Serial No. 460,541.

To all whom it may concern: i

Be it known that I, VALBERTUS W. Mc CALMoN'r, a citizen of the United States of America, residing at Pontiac, in the county of Oakland and State of Michigan, have invented certain new and useful Improvements in a Va orizer, of which the f ollowing is a specification, /reference being had therein to .the accompanying drawings.

.The invention relates to vaporizers for use in connection with carburetors, and it is the object of the invention to obtain a simple construction applicable to any form of internal combustion engine. To this end y the construction as hereinafter set forth.

In the drawings:

Figure l is a plan viewl of the vaporizer attachment; f

Figure 2 is a section through the junction between the carburetor and intake manifold of an internal combustion engine showing the vaporizer in section on line 2-2 of Figure l;

Figure 3 shows a modified construction applied directly to the manifold.

In the construction of carburetors for internal combustion engines the liquid fuel is finely sprayed in the carbureting chamber, but in the further passage through the intake, consolidation of the small particles frequently takes pla-ce. Thus there is a tendency for the fine globules of the liquid to coalesce and form larger globules and also to collect upon the surface of the conduit, particularly where there is a change in direction of the current. My improved vaporizer is designed to take advantage of the first spraying of the liquid and to cnntribute to the vaporization of the same without greatly heating'the air. This l have ac-4 complished by the arrangement of a heated surface adjacent to the throttle so as to be directly in the path of the mixture passing from the carburetor'particularly where the throttle is partly closed. The heated surface is preferably formed of tubing which is cast into a section'of the intake adjacent to the carburetor', said conduit having one end con-V nected to the exhaust manifold for receiving a portionof thel exhaust gases therefrom. f

1With the construction shown in AFigure 1, A. is a member insertable between the ad joining anges of the carburetor and the intake manifold, being formed with an aperture B registering with said carburetor and intake and the apertures C for the assage of the clamping bolts. D is a conduit preferably formed of a metal or alloy having a relatively high heat conductivity and which extends through the member A, being preferably cast therein and the latter being pref- 'erablya die casting. As shown in Figure 2,

a portion of the tubing passing through the gas passage is flattened, as indicated at E,

and one side of the tube is: adjacent to the wall of the member The arrangement is 'also such that when the member A is inserted between the carburetor `F and intake manifold Gr, the throttle H, when partiallyy closed, will direct the fuel mixture against lthe tube. Outside of the member A the tube D is of suicient length to make connection with the exhaust manifold and is provided at its end with a coupling nipple I and union J. The other end of the tube may be formed into a muffler as by' closing the endl of the same and providing a series of fino apertures K. n

The construction as described can be manufactured at very low cost and as the carburetor is always separable from the intake manifold, there is nothing to prevent .the insertion of the vaporizer therebetween.

face is nevertheless so restricted that veryl v little heat is imparted tothe air. Consequently, the temperature of the mixture is notgreatly elevated.

lVhat I claim as my invention isf 1. In a vaporizer for internal combustion 10c engines, the combination with the intake conduit, of a throttle controlling said conduit, adapted when partly open, to direct the flow primarily along one side of the conduit, a tube extending across the passage of said conduit adjacent to said throttlev and adjacent tothe side of said passage along which the primar iiow is directed in the partly opened position of the throttle, said tube being flattenedl within the conduit im transversely to the flow therethrough, said tube forming a conduit for a heating fluid.

2. In a vaporizer for internal combustion engines, the combination with a sectional intake conduit and a throttle valve in one sec'- tion thereof adapted to effect a flow of fuel mixture rimarily adjacent to one side of said con uit when partly open, of a mem ber interposed between the sections of said intake conduit having an opening therethrough registering with the openings in the ends of the adjacent sections, the diameter of said opening being substantially the same as the diameter of the passages in said sections, and a tube extending through said member having a flattened portion extending across the opening therein, said tube being adapted to receive a heating medium, said flattened portion being disposed near that side of the opening 1n said member toy which the primary flowsof mixture is deflected when said throttle is partlyopen.

lin testimony vwhereof I afix my signature.

' ALBER'IIUS W. MGCALMONT. y 

